Datasheet

28
LTC1759
1759fs, sn1759 LT/TP 0500 4K • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1998
TYPICAL APPLICATION
U
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
FAX: (408) 434-0507
www.linear-tech.com
RELATED PARTS
PART NUMBER DESCRIPTION COMMENTS
LTC1473 Dual PowerPath
TM
Switch Driver Switches Between Two Voltages
LTC1479 PowerPath Controller for Dual Battery Systems Switches Two Batteries, AC Adapter and Charger
LT1505 High Efficiency Constant-Current/Constant-Voltage Charger Up to 97% Efficiency with Input Current Limiting
LT1511 Monolithic 3A Constant-Current/Constant-Voltage Charger Input Current Limiting; No External MOSFETs
LTC1694 SMBus Accelerator in SOT-23 Package Improves SMBus Data Integrity
LT1769 Monolithic 2A Constant-Current/Constant-Voltage Charger Similar to LT1511 but 2A Rating, 28-Pin SSOP Package
PowerPath is a trademark of Linear Technology Corporation.
UV
V
DD
SYNC
SDB
CHGEN
V
LIMIT
I
LIMIT
DGND
I
SET
PROG
V
C
COMP1
AGND
RNR
THERM
SDA
SCL
INTB
22
21
8
32
9
10
2
33
34
1
3
35
30
29
31
23
26
36
R
SET
, 3.83k
R4, 1.5k
LTC1759
R7, 1k
RUR
1k
R3
499
R
WEAK
475k
RNR
10k
C9, 0.1µF
C13, 0.33µF
V
DD
V
DD
C11, 1µF
C12, 0.68µF
R
VLIMIT
, 33k
R
CL
, 0.033
R
S1
, 200
R6
68
R
S2
, 200
R1
15.8k
R2
1k
C2
0.47µF
C5, 2.2µF
C6
0.68µF
C8
0.047µF
C4, 0.1µF
C1
1µF
Q1
Q3
D1
Q2
L1
15µH
C16
22µF
SYSTEM
POWER
R
SENSE
0.025
D2 D2
R
ILIMIT
, 33k
7
16
4
5
12
25
24
18
17
28
27
11
6
20
19
14
15
13
DCIN
DCDIV
INFET
V
CC
CLP
CLN
TGATE
BOOSTC
GBIAS
BOOST
SW
BGATE
SPIN
SENSE
BAT1
BAT2
V
SET
PGND
C7
0.015µF
C3
22µF
C14
0.1µF
C15
10µF
35V
Al
AC
ADAPTER
INPUT
SMART
BATTERY
INTB
SMBus
TO
HOST
D1: MBRS130LT3
D2: FMMD7000
L1: SUMIDA CDRH127-150
Q1: Si3457DV
Q2, Q3: Si3456DV
SCL
SDA
1759 F10
+
+
4A SMBus Smart Battery Charger
Dimensions in inches (millimeters) unless otherwise noted.
PACKAGE DESCRIPTION
U
G Package
36-Lead Plastic SSOP (0.209)
(LTC DWG # 05-08-1640)
G36 SSOP 1098
0.13 – 0.22
(0.005 – 0.009)
0
° – 8°
0.55 – 0.95
(0.022 – 0.037)
5.20 – 5.38**
(0.205 – 0.212)
7.65 – 7.90
(0.301 – 0.311)
1234
5
6
7
8 9 10 11 12 14 15 16 17 1813
12.67 – 12.93*
(0.499 – 0.509)
2526 22 21 20 19232427282930313233343536
1.73 – 1.99
(0.068 – 0.078)
0.05 – 0.21
(0.002 – 0.008)
0.65
(0.0256)
BSC
0.25 – 0.38
(0.010 – 0.015)
NOTE: DIMENSIONS ARE IN MILLIMETERS
DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.152mm (0.006") PER SIDE
DIMENSIONS DO NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.254mm (0.010") PER SIDE
*
**